MSA PremAire Supplied Air Respirator (SAR) is tailor-made for confined space operations, featuring six distinct advantages: "Lightweight, Compact, Long-lasting, Fast, Comfortable, and Safe." Lightweight: Integrated cylinder valve and regulator design, weighing less than half of a typical respirator, with a base configuration of only 1.68kg; Compact: The cylinder mount can be easily detached, allowing operators to remain agile and composed even in tight spaces; Long-lasting: External air supply truly meets long-duration respiratory protection needs; Fast: Quick-fill interface enables easy one-minute air refill; Comfortable: Waist and shoulder straps are padded for enhanced comfort during extended operations; Safe: Safety; The MSA PremAire Supplied Air Respirator is a genuinely lightweight, comfortable, and long-lasting respiratory protection device. Moreover, depending on functional and application requirements, PremAire offers three different configurations for users to choose from: PremAire Supplied Air Respirator PremAire Supplied Air Respirator with Escape Cylinder PremAire Supplied Air Respirator with Escape Cylinder and Automatic Changeover Valve All three configurations are suitable for long-term use in non-IDLH (Immediately Dangerous to Life or Health) workplaces. For environments where IDLH conditions may arise, the configurations with an escape cylinder and with both an escape cylinder and automatic changeover valve serve as respiratory protection equipment during escape. The PremAire Supplied Air Respirator is not only widely used in traditional industries such as petrochemicals, natural gas, and general chemicals but also applicable in public utilities, water treatment, pharmaceuticals, and other fields. It complies with the Chinese national standard GB6220-2009, and its performance meets the requirements of European standards EN402, EN14593-1, EN14593-1, and EN137–Type I. Manufacturer Model: 10175683 Packaging Specification: 1 unit/box Note: Widely used in traditional industries, such as petroleum